Circular dichroism of four-wave mixing in nonlinear metamaterials

Alec Rose*, David A. Powell, Ilya V. Shadrivov, David R. Smith, Yuri S. Kivshar

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    46 Citations (Scopus)

    Abstract

    Metamaterial engineering offers a route to combine unusual and interesting optical phenomena in ways that are rare or nonexistent in nature. As an exploration of this wide parameter space, we experimentally demonstrate strong cross-phase modulation and four-wave mixing in a chiral metamaterial, highlighting the interplay of nonlinearity and circular dichroism. Furthermore, we show that the magnitude of the nonlinear parametric interaction follows certain selection rules regarding the circular polarizations of the various interacting waves. Using a coupled-mode analysis and finite element simulations, we relate these selection rules to the metamaterial's internal symmetries as well as its circular dichroism in the linear regime.

    Original languageEnglish
    Article number195148
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume88
    Issue number19
    DOIs
    Publication statusPublished - 25 Nov 2013

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